North Antrim Case Study

Question 1

old golf course

Answer 1

unnamed extrusive igneous rock and igneous bedrock

Question 2

dunluce castle

Answer 2

unnamed extrusive igneous rock + igneous bedrock

Question 3

skerries

Answer 3

unnamed igneous intrusion, igneous bedrock

Question 4

portstewart strand

Answer 4

unnamed extrusive rock, igneous bedrock

Question 5

Dominican college

Answer 5

unnamed extrusive rocks + igneous bedrock

Question 6

causeway

Answer 6

unnamed igneous extrusive rock + igneous bedrock

Question 7

port ballintrae

Answer 7

unnamed extrusive igneous rock + igneous bedrock

Question 8

blown sand

Answer 8

sand and gravel deposits

Question 9

runkerry (anomaly)

Answer 9

Hibernian greensands and ulster white limestone formation + chalk and sand sedimentary bedrock

Question 10

till

Answer 10

superficial sedimentary deposits

Question 11

portrush headland

Answer 11

unnamed igneous intrusion + igneous bedrock

Question 12

white rocks

Answer 12

Hibernian greensands formation and ulster white limestone formation + chalk and sandstone sedimentary bedrock

Question 13

overall:

Answer 13

majority of rock profiles here at NA coast is igneous rock formed by volcanic activity from around 56-62 million years ago. igneous is generally the older bedrock, while it can the superficial deposit on top as well, but so can sedimentary rocks. an anomaly can be Runkerry where whole profile is sedimentary - possibly more vulnerable to coastal erosion